What is the Greatest Common Factor of 28690 and 28705?

Greatest common factor (GCF) of 28690 and 28705 is 5.

GCF(28690,28705) = 5

We will now calculate the prime factors of 28690 and 28705, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28690 and 28705.

How to find the GCF of 28690 and 28705?

We will first find the prime factorization of 28690 and 28705. After we will calculate the factors of 28690 and 28705 and find the biggest common factor number .

Step-1: Prime Factorization of 28690

Prime factors of 28690 are 2, 5, 19, 151. Prime factorization of 28690 in exponential form is:

28690 = 2¹ × 5¹ × 19¹ × 151¹

Step-2: Prime Factorization of 28705

Prime factors of 28705 are 5, 5741. Prime factorization of 28705 in exponential form is:

28705 = 5¹ × 5741¹

Step-3: Factors of 28690

List of positive integer factors of 28690 that divides 28690 without a remainder.

1, 2, 5, 10, 19, 38, 95, 151, 190, 302, 755, 1510, 2869, 5738, 14345

Step-4: Factors of 28705

List of positive integer factors of 28705 that divides 28690 without a remainder.

1, 5, 5741

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28690 and 28705. The biggest common factor number is the GCF number.
So the greatest common factor 28690 and 28705 is 5.

Also check out the Least Common Multiple of 28690 and 28705